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SAE-AISI 1146 Steel vs. S20433 Stainless Steel

Both SAE-AISI 1146 steel and S20433 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1146 steel and the bottom bar is S20433 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 17
46
Fatigue Strength, MPa 240 to 400
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 410 to 440
440
Tensile Strength: Ultimate (UTS), MPa 670 to 730
630
Tensile Strength: Yield (Proof), MPa 360 to 630
270

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
39
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 97
230
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1050
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 26
23
Strength to Weight: Bending, points 22 to 23
21
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 20 to 22
14

Alloy Composition

Carbon (C), % 0.42 to 0.49
0 to 0.080
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 98.3 to 98.8
64.1 to 72.4
Manganese (Mn), % 0.7 to 1.0
5.5 to 7.5
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030